package com.ktg.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils
{
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYYMMDD = "yyyyMMdd";
    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};




    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate()
    {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate()
    {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime()
    {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow()
    {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format)
    {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date)
    {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date)
    {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts)
    {
        try
        {
            return new SimpleDateFormat(format).parse(ts);
        }
        catch (ParseException e)
        {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            if (str.toString().contains(" CST ")){
                SimpleDateFormat sim1 = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US);
                Date date = sim1.parse(str.toString());
                SimpleDateFormat sim2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                str = sim2.format(date);
            }
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e)
        {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate()
    {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2)
    {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor)
    {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor)
    {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 根据当前日期加减日期
     * @param add 增加或减少的数值
     * @return
     */
    public static String getDatetimeByAdd(int add){
        Calendar c = Calendar.getInstance();
        c.add(Calendar.DAY_OF_MONTH,add);
        return parseDateToStr(YYYY_MM_DD_HH_MM_SS, c.getTime());
    }

    /**
     * 根据当前日期加减秒
     * @param add 增加或减少的数值
     * @return
     */
    public static String getDatetimeByAddSecond(int add){
        Calendar c = Calendar.getInstance();
        c.add(Calendar.SECOND,add);
        return parseDateToStr(YYYY_MM_DD_HH_MM_SS, c.getTime());
    }

    /**
     * 根据当前日期加减秒
     * @param add 增加或减少的数值
     * @return
     */
    public static Date getDateByAddSecond(int add){
        Calendar c = Calendar.getInstance();
        c.add(Calendar.SECOND,add);
        Date date = c.getTime();
        return date;
    }


    /**
     * 根据当前日期加减秒
     * @param add 增加或减少的数值
     * @return
     */
    public static Date dateByAddSecond(Date befroeDate,int add){
        Calendar c = Calendar.getInstance();
        c.setTime(befroeDate);
        c.add(Calendar.SECOND,add);
        Date date = c.getTime();
        return date;
    }


    /**
     * 根据当前日期加减秒
     * @param month 增加或减少的数值
     * @return
     */
    public static Date dateByAddMonth(Date befroeDate,int month){
        Calendar c = Calendar.getInstance();
        c.setTime(befroeDate);
        c.add(Calendar.MONTH,month);
        Date date = c.getTime();
        return date;
    }


    public static String getWeek(Date date){
        String[] weeks = {"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int week_index = cal.get(Calendar.DAY_OF_WEEK) - 1;
        if(week_index<0){
            week_index = 0;
        }
        return weeks[week_index];
    }

    public static Integer getWeekIndex(Date date){
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int week_index = cal.get(Calendar.DAY_OF_WEEK) - 1;
        if(week_index<0){
            week_index = 0;
        }
        return week_index;
    }

    /**
     * 补齐日期正确写法
     * @param para
     * @return
     */
    public static String dataStringValueComplement(String para){
        String year = "";
        String month = "";
        String day = "";
        String HH = "";
        String mm = "";
        String ss = "";
        int type = 1;
        int a = 1;
        for(int i=0;i<para.length();i++){
            if(Character.isDigit(para.charAt(i))){
                String str = String.valueOf(para.charAt(i));
                switch (type){
                    case 1:
                    {
                        a = 1;
                        year += str;
                        if (year.length() >= 4){
                            type =a+1;
                        }
                        continue;
                    }
                    case 2:
                    {
                        a = 2;
                        month += str;
                        if (month.length() >= 2){
                            type =a+1;
                        }
                        continue;
                    }
                    case 3:
                    {
                        a = 3;
                        day += str;
                        if (day.length() >= 2){
                            type =a+1;
                        }
                        continue;
                    }
                    case 4:
                    {
                        a = 4;
                        HH += str;
                        if (HH.length() >= 2){
                            type =a+1;
                        }
                        continue;
                    }
                    case 5:
                    {
                        a = 5;
                        mm += str;
                        if (mm.length() >= 2){
                            type =a+1;
                        }
                        continue;
                    }
                    case 6:
                    {
                        a = 6;
                        ss += str;
                        if (ss.length() >= 2){
                            type =a+1;
                        }
                        continue;
                    }
                }
            }else {
                type =a+1;
            }
        }
        if (month.length() == 1){
            month = "0"+month;
        }
        if (day.length() == 1){
            day = "0"+day;
        }
        if (HH.length() == 1){
            HH = "0"+HH;
        }
        if (mm.length() == 1){
            mm = "0"+mm;
        }
        if (ss.length() == 1){
            ss = "0"+ss;
        }
        if (month.length() == 0){
            month = "00";
        }
        if (day.length() == 0){
            day = "00";
        }
        if (HH.length() == 0){
            HH = "00";
        }
        if (mm.length() == 0){
            mm = "00";
        }
        if (ss.length() == 0){
            ss = "00";
        }
        String dayStr = year+"-"+month+"-"+day+" "+HH+":"+mm+":"+ss;
        return dayStr;
    }

}
